updated docs to 0.4 download link

doc/install-docker.md

@@ -34,3 +34,11 @@ sudo docker run \
 	-e DRONE_GITHUB_SECRET=1ac1eae5ff1b490892f5 \
 	--name=drone drone/drone
 ```
+
+### Logging
+
+When running Drone inside Docker the logs are sent to stdout / stderr. You can view the log output by running the following command:
+
+```bash
+docker logs drone
+```

doc/install-ubuntu.md

@@ -20,7 +20,7 @@ wget -qO- https://get.docker.com/ | sh
 Once the environment is prepared you can install Drone from a debian file. Drone will automatically start on port 80. Edit /etc/drone/drone.toml to modify the port.
 
 ```bash
-wget downloads.drone.io/master/drone.deb
+wget downloads.drone.io/0.4.0/drone.deb
 sudo dpkg --install drone.deb
 ```